Bolt-holder



w. s. NICHOLAS; BOLT- HOLDER.

APPLICATION FILED AUGJ, I9I9;

1,335,386. Patented Mar. 30,1920.

Y ATI'ORNEY WILLARD NICHOLAS, OF SHELTON, CONNECTICUT.

' BOLT-HOLDER.

Specification of Letters Patent. Patented Mar. 30, 1920.

Application filed August 7, 1919. Serial No. 315,850.

To all whom it may concern:

Be it known that I, WILLARD S. NICHOLAS, a citizen of the United States, residing at Shelton, county of F airfield, State of Connecticut, have invented an Improvement in Bolt-Holders, of which the following is a specification.

This invention has for its object to provide a simple and inexpensive tool for holding loose bolts while turning the nut off, means being provided for locking the tool to the bolt head so that it will not drop off no matter what may be the position of the bolt, it being understood of course that the tool is equally operative if placed in engagement with a bolt head from below, and if more convenient, that the tool may be placed .in engagement with the nut and the wrench applied to the bolt head to turn the bolt out of the nut. The tool is adapted for general use and is especially adapted for use in places that are extremely difficult to reach in order to hold a bolt head by means of a wrench or any tool heretofore known to the trade, as on the cylinder crank case of a Ford car, the tool enabling one man to do work for which two men have heretofore been required.

With these and other objects in View I have devised the novel bolt holder which I will now describe referring to the accompanying drawing forming a part of this specification and using reference characters to indicate the several parts.

Figure 1 is a perspective view showing my novel tool locked in engagement with a bolt head;

Fig. 2 an elevation of the tool, detached;

Fig. 3 a section on the line 3-3 in Fig. 2, looking in the direction of the arrows;

Fig. 4 a section on the line 4-4 in Fig. 2, looking in the direction of the arrows;

Fig. 5, a perspective view of a modified form of the tool, and

Fig. 6 is a view on a reduced scale, illustrating the use of the tool in holding the bolt head so that the nut may be turned off.

10 denotes the body of my novel tool V which is provided in one end with a socket 11 adapted to receive the head 12 of a bolt 13. or if more convenient the socket may receive and hold the nut while the bolt is being turned out of it. It is common practice to make the bolt head, and usually the nut also, hexagonal, consequently socket 11 is made hexagonal. It is an important feature of the invention that the socket end of the body is beveled off, as at 14c, to correspond with two or three, as preferred, of the angles of the socket, the portion of the wall of the socket corresponding with these angles being reduced in thickness, thus forming angles upon the outer wall which correspond substantially with angles of the socket, the walls being left as thin as possible but am ply strong to withstand the strains of use. The purpose of this beveling off of the angles upon the socket end of the body is to enable the tool to be used in places where there is barely room for the bolt head, such a use being clearly indicated in Fig. 6.

The holder is locked to the bolt head, or nut as may be, by means of a set screw 15 which passes through a relatively thick portion of the wall of the socket and the end of which is adapted to engage the bolt head, or nut.

The other end of the body is preferably, although not necessarily, made hexagonal and the body is provided with a plurality of holes 16 extending through it transversely and out of longitudinal alinement. 17 denotes a stop bar which is adapted to be passed through either of these holes, one end of the bar in use engaging some fixed part of the engine or other structure from which it is des1red to remove a bolt, as clearly shown in Fig. 6.

The form illustrated in Fig. 5 differs in that the body instead of being a solid forging or casting is made from a piece of metal tubing, three bevels 14 being formed by pressing the metal inward, as clearly shown either with or without a thinning down of the wall upon the three angular sides of the socket. The other half of the lower end of the body may be left round as shown.

The operation will be obvious from the drawing. The operator turns out the set screw far enough to permit the bolt head, or nut, to be received in the socket, tightens up the set screw to lock the tool to the bolt head or nut, and passes the bar part way through one of the holes in the body in such position that the bar will engage some fixed portion of the structure. wrench may then be applied to the nut, or to the bolt head, as may be, and the nut and bolt disen aged.

aving thus described my invention, I claim:

A bolt holdercomprising a body having said socket corresponding with a plurality duced in thickness, the remaining Wall .por-

tion of said socket being substantially cylin-' drical and having a set screw positioned therein opposite the reduced portion, and means for preventing rotation of the holder When a nut is removed from the bolt.

In testimony whereof I afiix my signature.

WILLARD S. NICHOLAS. 

